Key-opening can



W. E. BURNS KEY OPENING- CAN Jan. 13, 1931.

7 Filed Nov. 26, 1927 mmillmill l FRANCISCO, CALIFORNIA, V'A- oonronAwion on EL WARE I xny-ornmnq onnj i r p Application filed November 25192 1 senai n liasiws." i

This invention relates to key-opening tin cans as provided with a tearing strip for engagement with a winding key, andthe objects ofthe invention are to provide im 5 provements in the temporary fastening of the key to'the can top so that it will be readily accessible tofa person desiring to open the can,'yet will not'be liable to become loose v0r lost'from the can top, also-such a 10 construction which will contribute'to easier manufacturing operations in making the can completewith its key. 7 Y I In the drawings hereto the uppe'r'head or lid only of a can isshown with my im- 15 proved key feature, as the particular construction of thebodyi of the can is immaterial to this invention.- v I Fig. 1 is a plan view of the can lid show- Iingv a special depression for receiving the cey. 1 v a Fig. 2 is a similar plan view to Fig. l; but with the key in place and tip end soldered to'lid. V I

'Fig. 3.is' a cross section of thelid as seen from the line 3-3 of Fig. 2. v u r In further detail the lidis designated 1, the key receiving .depression- 2,. and the 'key3; This lid isshown with an annular marginal recess a to provide an internal friction lid for the canyand-the key depression is so formed'that its inner end lies, in the center of the lid circle and is tormedwith a small step at' 5 to support the tip only of the kejg'with 'thebottoin ofthe depression spaced below'the: shank of the key as shown at A inFig;-.-'3.

(he-body of thefkey lies {substantially Hush with the uppersurface' 1 of the lid and the depression is provided with a raised portion or hump- (i fitting freely within the I loopv o'r handle 7 of the key so shapedns' to 'support thehandle end of the :key j in alignment with the small step 5 of the key.

The extreme tip of the key is, soldered" to the lid' with --a drop of solder as at8 and since the end of the key rests only'on the it is manifest that the soldered area cannot at the tip step in a narrower portion of the depression extendvariously along the key shank'b'u't willal'ways be limited to exactly the area of the step, even though a little of the solder should run beyond the step since thedepression clears the key at the sides at B'Tand underthe keyat A.

Extending laterally from the raised pen tion or hump" are two; deepened depresslons 9 adapted to facilitate grasping the ,key withthe .fingersand tearing it loose fronithe tip-end;

Also it shouldbe observed that the small. step SsuppOrting the tip of the key lying WILFORD BURNS, or BURLINGAME, oemronnrgi, AssiienoR' TO M. J. isfoo OEISAN.

in the center-of the can circle is easily solderedby an automatic tipping machine regardless as tothe angular G-XtQHSlOIl of the key. This also "provides for soldering the key and tipping the can simultaneously in I cases where the can contents are-vacuumlzedthrough an aperture punched through the can 'lidfit' being merely necessary to punch such an aperture through the step 5 before placing the key 7 in the depression.

. The. hump -6 ;isfai valuable feature of the improvement as it is la 1 tapering free fit within the handle or'bail of the key sothat .-a key dropped at randomwithin the depresslon or .merely upon the lid and'the lid shaken will automatically fall into the only position available to it, and which of course is the correct position as shown in l*ig. '9-;

Another vfeature 'otithe invention is that.

double seaming otthelids to the can bodies if desired. i

rom the above descriptioi-i be evident that the'key maybe applied to either end of the can in thel nanner described,

hence my use ofthewo'rdflid in theclainis s intended to mean" either end of the, can.

1 I claim: r

1.' A can providedfwith a depression in. 'wall thereoi adapted to receivean opening key, a key in; said "depressiomsald depres' sion provided With a' localized area for soldering the key thereto embracing and j supporting the key, and the portion of the depression adjacent the localized area being spaced entirely free from the adjacent p01 tions of the key whereby the solder will be localized on said area and be prevented from running along the key.

2. A can provided With a depression in a I w'a'u themor adapted to recelve an opening key, a key in S2L1Cl depression, and bosses Within the depression supporting the key at opposite ends With the body of the key free of contact With the side alls of the dep'ression, and said key sectired at 'one end only to its; supporting boss.

lVILFORD E. S 

